In situ oriented crystal growth in a ceramic nanostructured system -: art. no. 024313

被引：23

作者：

Ribeiro, C ^{[1
]}

Lee, EJH ^{[1
]}

Giraldi, TR ^{[1
]}

Aguiar, R ^{[1
]}

Longo, E ^{[1
]}

Leite, ER ^{[1
]}

机构：

[1] UFSCar, Dept Quim, CDMDC, LIEC, BR-13565905 Sao Carlos, SP, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1063/1.1829782

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report here on an in situ experimental analysis of the growth processes of tin dioxide nanoparticles (with mean particle radius of less than 5 nm) and the oriented attachment of these particles onto SnO2 nanobelts, used as single crystalline substrates, through electron irradiation by transmission electron microscopy. Characterization by high resolution transmission electron microscopy indicates that grain growth occurs in the solid state by a two-step process consisting of grain rotation followed by coalescence. The grain rotation is likely induced by the thermal energy provided by the electron beam. Coalescence or oriented attachment occurs preferentially on particles with similar crystallographic orientations. (C) 2005 American Institute of Physics.

引用

页数：4

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